package com.atguigu.lease.common.utils;

import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import io.jsonwebtoken.*;
import io.jsonwebtoken.security.Keys;

import javax.crypto.SecretKey;
import java.util.Date;

/**
 * @Author 27435
 * @Version 1.0
 * @Description
 * @Date 2025/2/28 12:31
 */

public class JwtUtils {

    private static SecretKey secretKey = Keys.hmacShaKeyFor("RdT210H3DL00Mbx0PGeu7OrWzAnH0Zes".getBytes());

    public static String createToken(Long userId, String username){

        String jwt = Jwts.builder()
                .setExpiration(new Date(System.currentTimeMillis() + 3600000))
                .setSubject("LOGIN_USER")
                .claim("userId", userId)
                .claim("username", username)
                .signWith(secretKey, SignatureAlgorithm.HS256)
                .compact();
        return jwt;
    }

    public static Claims parseToken(String token){

        if (token == null){
            throw new LeaseException(ResultCodeEnum.ADMIN_LOGIN_AUTH);
        }

        try {
            JwtParser jwtParser = Jwts.parserBuilder().setSigningKey(secretKey).build();
            Jws<Claims> claimsJws = jwtParser.parseClaimsJws(token);
            return claimsJws.getBody();
        } catch (ExpiredJwtException e) {
            throw new LeaseException(ResultCodeEnum.TOKEN_EXPIRED);
        } catch (JwtException e){
            throw new LeaseException(ResultCodeEnum.TOKEN_INVALID);
        }
    }

    public static void main(String[] args) {
        System.out.println(createToken(1L, "13888888888"));
    }

}
